/Engine/Source/Runtime/MeshConversion/Public/DynamicMeshToMeshDescription.h
Updates the given mesh description based conversion options provided in the constructor. Assumes the mesh topology has not changed. Annoyingly, this can't just be namedUpdate()due to ambiguity with the function below, which existed beforehand and should probably have been this function instead.
void UpdateUsingConversionOptions ( const [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) * MeshIn, [FMeshDescription](API\Runtime\MeshDescription\FMeshDescription) & MeshOut )